Regional Weather Roundup
Issued by NWS

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513
ASUS43 KLOT 171156
RWRIL

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 AM CDT MON AUG 17 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.

ILZ001-002-007-009-015-016-024-171300-
NORTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
MOLINE         CLEAR     64  63  96 W6        30.06R TC  18
6HR MIN TEMP:  62; 6HR MAX TEMP:  67;

$$

ILZ003-004-008-010-011-017-018-171300-
NORTH CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ROCKFORD       NOT AVBL
$$

ILZ005-006-012>014-019>023-171300-
NORTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  MOCLDY    69  65  86 N9        30.00R TC  21
6HR MIN TEMP:  67; 6HR MAX TEMP:  70;

CHICAGO-MIDWAY NOT AVBL
AURORA         PTCLDY    63  62  97 NW5       30.03R TC  17
6HR MIN TEMP:  62; 6HR MAX TEMP:  66;

WAUKEGAN       MOCLDY    67  65  93 N3        30.01R TC  19
6HR MIN TEMP:  65; 6HR MAX TEMP:  68;

DUPAGE AIRPORT CLOUDY    67  63  87 NW5       30.02R TC  19
6HR MIN TEMP:  65; 6HR MAX TEMP:  68;

WHEELING       PTCLDY    67  65  93 N6        30.02R TC  19
6HR MIN TEMP:  66; 6HR MAX TEMP:  70;

NORTHERLY ISL*   N/A     70  64  81 W6          N/A  TC  21
$$

LMZ740>746-171300-
SOUTHERN LAKE MICHIGAN

STATION/POSITION SKY/WX   TEMP    WIND        PRES    VSBY  WAVE
                          AIR SEA DIR/SP/G                  HT/PER
                          (F)     (DEG/KT/KT) (MB)    (MI)  (FT/S)
WINTHROP HARBOR            73 74  360/ 14/ 17 1015.8R         2/ 4
WAUKEGAN HARBOR            73 74  350/ 14/ 17 1016.7R         2/ 4
WILMETTE BUOY              73      80/ 14/ 19 1018.7R         3/ 4
CHICAGO BUOY               71 73              1014.5R         2/ 4
HARRISON CRIB              70     300/  9/ 11   N/A
NORTHERLY ISL              69     260/  4/  7   N/A
CALUMET HARBOR                    270/  2/  5 1015.6
MICHIGAN CITY              73     360/  9/ 10 1013.5R
MICH CITY BUOY             73 74  360/  6/  8   N/A           2/ 5
ST. JOSEPH BUOY            73 74   40/  8/ 12 1016.1R         2/ 5
$$

ILZ025>027-034>036-040-047-049-050-058-095>099-171300-
WEST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

ILZ028>032-037-038-041>044-048-051>054-059>061-171300-
CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
PEORIA         NOT AVBL
SPRINGFIELD    CLEAR     68  66  93 NW7       30.04R TC  20
6HR MIN TEMP:  68; 6HR MAX TEMP:  75;

TAYLORVILLE    NOT AVBL
$$

ILZ033-039-045-046-055>057-062-063-171300-
EAST-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

ILZ079-100>102-171300-
SOUTHWEST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

ILZ064>066-069>071-074>076-080>082-084>086-088>090-092>094-171300-
SOUTH-CENTRAL ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARBONDALE     NOT AVBL
$$

ILZ067-068-072-073-078-083-087-091-171300-
SOUTHEAST ILLINOIS

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
$$

ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURE IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY
$$